Heat-shrinkable polyester film, process for production thereof, and package

a polyester film and shrinkable technology, applied in the field of shrinkable polyester film, can solve the problems of low heat resistance, inferior chemical resistance, high temperature incineration, etc., and achieve the effects of high shrinkability, high mechanical strength, and high stiffness (so-called “bend” strength)
US20090304997A1Active Publication Date: 2009-12-10TOYO TOYOBO CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
TOYO TOYOBO CO LTD
Publication Date
2009-12-10

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Abstract

The present invention provides a heat-shrinkable polyester film with very good perforation-tear property and also very high productivity. A heat-shrinkable polyester film made of a polyester resin including ethylene terephthalate as a main constituent and containing 15% by mole or more of at least one monomer capable of forming an amorphous component in the whole components of the polyester resin, which exhibits specific heat shrinkage properties and specific mechanical properties after the heat shrinkage.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a heat-shrinkable polyester film, a process for production thereof, and package, specifically relates to a heat-shrinkable polyester film suitable for a label application, a process for production thereof, and package using the label.BACKGROUND ART

[0002] Recently, in applications such as label package doubling as a protection of a glass bottle and a PET bottle etc. and display of articles, cap sealing and accumulation package, there have been widely used drawn films (so-called heat-shrinkable films) composed of a polyvinyl chloride resin, a polystyrene resin, a polyethylene resin or the like. Of these heat-shrinkable films, a polyvinyl chloride film has problems that heat resistance is low, and it generates hydrogen chloride gas in incineration and causes dioxin. A polystyrene film has problems that it is inferior in chemical resistance, as well as an ink with a special composition needs to be used in printing, it requires high te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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